公开(公告)号：AU2002301023B2

公开(公告)日：2005-06-16

申请号：AU2002301023

申请日：2002-09-13

Applicant: EMERSON CLIMATE TECHNOLOGIES INC

Inventor： CAILLAT JEAN-LUC M ,  SINGH ABTAR ,  PHAM HUNG M

IPC: F25B41/04 ,  F25B49/02 ,  F25B049/02 ,  F25B041/04

公开(公告)号：AU2004236695B8

公开(公告)日：2008-10-09

申请号：AU2004236695

申请日：2004-04-29

Applicant: EMERSON CLIMATE TECHNOLOGIES RETAIL SOLUTIONS INC

Inventor： SINGH ABTAR ,  MATHEWS THOMAS J ,  WOODWORTH STEPHEN T

IPC: F25B49/00

Abstract: A system includes a compressor temperature sensor that generates a compressor discharge temperature signal corresponding to a compressor of a refrigeration system, a compressor pressure sensor that generates a compressor discharge pressure signal corresponding to the compressor, and a controller processing the signals over a predetermined time period. The processing includes calculating a discharge saturation temperature based on the compressor discharge pressure signal, calculating compressor superheat data based on the compressor discharge temperature signal and the discharge saturation temperature, accumulating the compressor superheat data over the predetermined time period, and comparing the accumulated compressor superheat data to a predetermined threshold. The controller generates an alarm indicating a compressor fault based on the comparing.

公开(公告)号：AU2004214581B2

公开(公告)日：2006-06-29

申请号：AU2004214581

申请日：2004-09-24

Applicant: EMERSON CLIMATE TECHNOLOGIES RETAIL SOLUTIONS INC

Inventor： WALLACE JOHN ,  SINGH ABTAR ,  WICKBERG PAUL ,  CHABUCOS JIM

IPC: F25B49/00 ,  F25B41/04

公开(公告)号：AU2002303519B2

公开(公告)日：2006-05-11

申请号：AU2002303519

申请日：2002-04-29

Applicant: EMERSON CLIMATE TECHNOLOGIES RETAIL SOLUTIONS INC

Inventor： MATHEWS THOMAS J ,  WICKBERG PAUL ,  SINGH ABTAR ,  STARLING NEAL

IPC: G08B17/00 ,  A23G9/00 ,  A23L3/00 ,  A23L3/36 ,  F25B5/00 ,  F25B49/00 ,  F25D29/00 ,  G05B15/02 ,  G05B23/02 ,  G06Q10/08

Abstract: A system is provided for monitoring the food product of a remote food product retailer. The system includes a management center in communication with the remote food product retailer via a communication network. The communication network is accessible via a user interface that may be located at any of the management center, the remote location or some other location. The management center gathers food product temperature information and uses that information to determine whether the shelved food product is within acceptable food safety and quality limits. If the food product exceeds these limits, an alarm is sounded at either the management center and the remote location. The user interface is operable to monitor the status of the food product via a selection of screens and remotely respond to the alarms.

公开(公告)号：AU4029601A

公开(公告)日：2001-11-08

申请号：AU4029601

申请日：2001-05-02

Applicant: EMERSON CLIMATE TECHNOLOGIES RETAIL SOLUTIONS INC

Inventor： GELBER SCOTT MICHAEL ,  SINGH ABTAR ,  AGGERS JOHN

IPC: F25B41/04 ,  F25D29/00 ,  G05D23/19 ,  G08C17/02 ,  G05D23/20

Abstract: A system and method for controlling refrigeration including a temperature sensor (50) operable to measure a temperature from a refrigeration case (22) and a transceiver (82) in communication with the temperature sensor and operable to wirelessly transmit data. A repeater receives the wirelessly transmitted data and further wirelessly transmits the data to a receiver (94). A controller (30) in communication with the receiver controls the refrigeration system based upon the wirelessly transmitted data from the refrigeration case. The refrigeration case also includes a mode switch for suspending temperature reading and control for a period of time. For example, the mode switch can be used by an operator during cleaning or maintenance of the refrigerator case.; Temperature control algorithms are used by the controller, and include: dead-band range (DB), proportional/integral (PI), proportional/integral/differentiation (PID) and fuzzy-logic (FL).

公开(公告)号：AU2004214580B2

公开(公告)日：2006-06-22

申请号：AU2004214580

申请日：2004-09-24

Applicant: EMERSON CLIMATE TECHNOLOGIES RETAIL SOLUTIONS INC

Inventor： WICKBERG PAUL ,  SINGH ABTAR ,  WALLACE JOHN ,  CHABUCOS JIM

IPC: F25B49/00 ,  F25B41/04

公开(公告)号：AU2004202267B2

公开(公告)日：2006-02-23

申请号：AU2004202267

申请日：2004-05-25

Applicant: EMERSON CLIMATE TECHNOLOGIES RETAIL SOLUTIONS INC

Inventor： GATLING WILLIAM ,  RIPPE HERB ,  SINGH ABTAR ,  CHABUCOS JIM

IPC: G08C17/02 ,  F25D29/00 ,  G05D23/20

公开(公告)号：AU4029501A

公开(公告)日：2001-11-08

申请号：AU4029501

申请日：2001-05-02

Applicant: EMERSON CLIMATE TECHNOLOGIES RETAIL SOLUTIONS INC

Inventor： GATLING WILLIAM ,  SINGH ABTAR ,  CHABUCOS JIM ,  RIPPE HERB

IPC: F25B41/04 ,  F25D29/00 ,  G05D23/19 ,  G08C17/02 ,  G05D23/20

Abstract: A system and method for controlling refrigeration including a temperature sensor (50) operable to measure a temperature from a refrigeration case (22) and a transceiver (82) in communication with the temperature sensor and operable to wirelessly transmit data. A repeater receives the wirelessly transmitted data and further wirelessly transmits the data to a receiver (94). A controller (30) in communication with the receiver controls the refrigeration system based upon the wirelessly transmitted data from the refrigeration case. The refrigeration case also includes a mode switch for suspending temperature reading and control for a period of time. For example, the mode switch can be used by an operator during cleaning or maintenance of the refrigerator case.; Temperature control algorithms are used by the controller, and include: dead-band range (DB), proportional/integral (PI), proportional/integral/differentiation (PID) and fuzzy-logic (FL).

公开(公告)号：AU9308798A

公开(公告)日：1999-04-23

申请号：AU9308798

申请日：1998-09-09

Applicant: EMERSON CLIMATE TECHNOLOGIES INC

Inventor： PHAM HUNG M ,  SINGH ABTAR ,  CAILLAT JEAN-LUC M ,  BASS MARK

IPC: F01C1/02 ,  A47F3/04 ,  F04B49/06 ,  F04C18/02 ,  F04C27/00 ,  F04C28/00 ,  F04C28/02 ,  F04C28/06 ,  F04C28/08 ,  F04C28/18 ,  F04C28/22 ,  F04C28/26 ,  F04C28/28 ,  F25B1/04 ,  F25B5/02 ,  F25B41/04 ,  F25B41/06 ,  F25B49/00 ,  F25B49/02 ,  G05D1/08 ,  G05D23/19

Abstract: A control for a refrigeration system serviced by a special pulse width modulated compressor (30) coupled to a condenser (32)and evaporator (42). The system can be of the distributed type wherein the condenser (32) and compressor (30) may be coupled to service a group of adjacent refrigeration cases, wherein each case would have its own evaporator (42). A controller (52) is coupled to a load sensor (58) for producing a variable duty cycle control signal (54) in which the duty cycle is a function of demand for cooling. Moreover, fuzzy logic technique may be utilized in order to provide self adaptive tuning control for the system.

公开(公告)号：AU2005302420B2

公开(公告)日：2010-09-09

申请号：AU2005302420

申请日：2005-10-28

Applicant: EMERSON CLIMATE TECHNOLOGIES RETAIL SOLUTIONS INC

Inventor： GURKAN OZGUR Y ,  MATHEWS THOMAS J ,  SINGH ABTAR ,  BROWN FRANK C

IPC: F25D17/00 ,  F25B1/00 ,  F25B39/04 ,  F25B49/00